CN104132482B - Parallel flow type heat exchanger - Google Patents
Parallel flow type heat exchanger Download PDFInfo
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- CN104132482B CN104132482B CN201410370898.1A CN201410370898A CN104132482B CN 104132482 B CN104132482 B CN 104132482B CN 201410370898 A CN201410370898 A CN 201410370898A CN 104132482 B CN104132482 B CN 104132482B
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- header
- chilled water
- flat pipe
- plate
- separate space
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Abstract
The invention discloses a parallel flow type heat exchanger which comprises a first flow collection tube, a second flow collection tube, four multi-hole flat tube sets and multiple fin bands. The first flow collection tube and the second flow collection tube are respectively provided with a chilled water inlet and a chilled water outlet. One end of two multi-hole flat tube sets is connected with the chilled water outlet of the first flow collection tube, and the other end of the two multi-hole flat tube sets is connected with the chilled water inlet of the second flow collection tube. One end of the other two multi-hole flat tube sets is connected with the chilled water outlet of the second flow collection tube, and the other end of the other two multi-hole flat tube sets is connected with the chilled water inlet of the first flow collection tube. The first flow collection tube is provided with an inlet and an outlet. Every two multi-hole flat tube sets are spaced from each other and extend side by side in the horizontal direction to form a multi-hole flat tube row. Gaps are formed between the adjacent multi-hole flat tube rows. The fin bands are arranged in the gaps. The fin bands are of a wavy shape and are respectively provided with an arched portion and a fin portion, wherein ventilation openings are formed between the adjacent fin portions. The parallel flow type heat exchanger can achieve sufficient and stable contact between multi-hole flat tubes and the fin bands, and is low in heat resistance and high in heat conversion rate.
Description
Technical field
The present invention relates to heat exchanger is and in particular to parallel flow heat exchanger.
Background technology
Fan coil is by heat exchanger (or claiming heat exchanger), water pipe, filter, fan, drip tray, air bleeding valve, support etc.
Composition, the cassette mechanism structure of the fan coil of the central air-conditioning on existing market is heat exchanger is pipe sheet type structure, as Fig. 1 institute
Show, it is aluminum fin-stock (be referred to as pipe sheet type structure) on copper pipe set, through expansion tube process, aluminum fin-stock is in close contact with copper pipe
And form.During air-conditioning work, chilled water in copper Bottomhole pressure, pass to aluminum fin-stock by tube wall and cool down and flow through aluminum fin-stock table by cold
The air (air in air-conditioned room) in face, the air themperature reducing in room reaches air-conditioning purpose.But due to pipe thickness and aluminium wing
Piece thickness differs manyfold, so, affected by expanding with heat and contract with cold in the heat exchanger course of work, the line of copper pipe set and aluminum fin-stock
Expansion rate is not quite similar, and after work after a while, between copper pipe set and aluminum fin-stock, the plasticity caused by tube becomes
Shape internal stress can decline therewith, and contact stress accordingly lowers, thus thermal resistance between copper pipe set and aluminum fin-stock can be caused to increase leading to change
The thermal efficiency reduces, and increases the energy consumption of air-conditioning system, and, in process, expansion tube process is it is difficult to ensure that all connect between section of jurisdiction
Touch, the vibration in work often makes copper sleeve and aluminum fin-stock loosen again, thus result in that thermal resistance between the two is very big, heat exchange efficiency drops significantly
Low.
In addition, the circulation of copper pipe set connects a large amount of elbow of needs back and forth, its welding is also difficult to ensure card once success, slightly hole
Gap, arises that coolant leakage, leads to a large amount of cold drainings.Furthermore, traditional heat exchangers are after being passed through air-conditioning return air by circular copper
Form vortex (as shown in Figure 2), the problem that build-up of pressure loss, noise increase after sleeve pipe.
Content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide parallel flow heat exchanger, realize porous flat
Pipe is contacted with the abundant, stable of fin band, its thermal resistance very little, and thermal conversion rate is high.
The purpose of the present invention adopts the following technical scheme that realization：
Parallel flow heat exchanger, including the first header, the second header, four groups of porous flat pipe groups and a plurality of fin band,
First header and the second header are respectively provided with chilled water inlet and chilled water outlet, wherein one end of two groups of porous flat pipe groups with
The chilled water outlet of the first header connects, and the other end is connected with the chilled water inlet of the second header；Another two groups of porous flat pipes
One end of group is connected with the chilled water outlet of the second header, and the other end is connected with the chilled water inlet of the first header, and first
The import being connected with the chilled water outlet of the first header and the chilled water inlet with the first header are additionally provided with header
The outlet of connection；Every two groups of porous flat pipe groups are spaced and extend side by side in the horizontal direction and constitute porous flat pipe row, phase
Adjacent porous flat pipe row is parallel to each other and height is separated by and forms gap, and fin band is placed in this gap, and this fin band is in wave
Shape simultaneously has the portion and connect two fin part arching upward portion, shape between adjacent fins portion of arching upward with the row's welding of adjacent porous flat pipe
Become ventilating opening.
Preferably, described first header includes the first seal casinghousing and the dividing plate of column, and this first seal casinghousing has
First interior plate and the first arc outside plate connecting the first interior plate both sides；Dividing plate is placed in the first seal casinghousing, and the two of dividing plate
Side is respectively and fixedly connected with the first interior plate and the first arc outside plate, and by be divided into inside the first seal casinghousing the first separate space and second every
Chamber；The chilled water outlet of described first header connects located at the first interior plate and with the first separate space, and described import is located at first
Arc outside plate is simultaneously connected with the first separate space, the chilled water inlet of described first header located at the first interior plate and with the second separate space
Connection, described outlet connects located at the first arc outside plate and with the second separate space.
Preferably, described second header includes the second seal casinghousing and the deflector of column, and this second seal casinghousing has
The the second arc outside plate having the second interior plate and connecting the second interior plate both sides；Deflector is placed in the second seal casinghousing, water conservancy diversion
The second interior plate is fixed in the side of plate, and is divided into the 3rd separate space and the 4th separate space by inside the second seal casinghousing；Deflector
Another lateral second arc outside plate extend, the opposite side of this deflector is separated by with the second arc outside plate, formed connect the 3rd every
Chamber and the passage of the 4th separate space；The chilled water outlet of described second header connects located at the second interior plate and with the 4th separate space,
The chilled water inlet of described second header connects located at the second interior plate and with the 3rd separate space.
Preferably, porous flat pipe group described in every group all includes a plurality of porous flat pipe side by side.
Preferably, it is connected through a connecting plate between two groups of porous flat pipe groups of same row.
Preferably, described porous flat pipe is internally provided with multiple manholes, and manhole is distributed on flat tube, and this is internal, circle
A diameter of 2mm～10mm of shape through hole.
Preferably, described first header, the second header, porous flat pipe and fin band are each made of aluminum.
Preferably, described ventilating opening takes the shape of the letter U or V-arrangement.
Preferably, described porous flat pipe group is 4n group, and wherein, n is the natural number more than 0.
Compared to existing technology, the beneficial effects of the present invention is：
(1) the fin band of the present invention and porous flat pipe integral solder form (such as using soldering) it is ensured that fin band and porous
Abundant, the stable cold contacting, can fully taking away fin band through the air-conditioning return air that ventilating opening enters between flat tube, the heat of appearance
Resistance very little, the thermal conversion rate between fin band and porous flat pipe is high；
(2) present invention is that the chilled water backflow being passed through porous flat pipe is turned using the first header and the second header
Guiding, therefore eliminating tradition needs to arrange elbow connection, solves and coolant leakage because of elbow welding hole, a large amount of leakages
Cold problem；
(3) present invention achieves full aluminum, weight is light more a lot of than traditional heat exchangers, saves valuable copper material in a large number；
(4) the fin band undulate of the present invention, the achievable windage of porous flat pipe of cooperation flat is little, pressure reduction reduces, makes an uproar
The little effect of sound, solves traditional heat exchangers and forms vortex, the problem that build-up of pressure loss, noise increase after pipe.
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
Brief description
Fig. 1 is the schematic diagram of existing heat exchanger；
Fig. 2 is the schematic diagram forming vortex after copper sleeve in existing heat exchanger is passed through air-conditioning return air；
Fig. 3 is the structural representation of parallel flow heat exchanger of the present invention；
Fig. 4 is the internal structure schematic diagram of parallel flow heat exchanger of the present invention；
Fig. 5 is the structural representation of the present invention first header；
Fig. 6 is the structural representation of the present invention second header；
Fig. 7 is chilled water flow of the present invention to the schematic diagram with air-conditioning return air direction；
Fig. 8 be passed through air-conditioning return air for porous flat pipe group of the present invention after wind direction schematic diagram..
In figure：1st, the first header；11st, the first seal casinghousing；111st, the first interior plate；112nd, the first arc outside plate；12、
Dividing plate；13rd, the first separate space；14th, the second separate space；2nd, the second header；21st, the second seal casinghousing；211st, the second interior plate；212、
Second arc outside plate；22nd, deflector；23rd, the 3rd separate space；24th, the 4th separate space；3rd, porous flat pipe group；31st, porous flat pipe；4th, wing
Piece band；41st, arch upward portion；42nd, fin part；43rd, ventilating opening；5th, porous flat pipe row；100th, chilled water inlet；200th, chilled water goes out
Mouthful；300th, import；400th, outlet.
Specific embodiment
Parallel flow heat exchanger as illustrated in figures 3-6, including the first header 1,2, four groups of porous flat pipes of the second header
Group 3 and a plurality of fin band 4, the first header 1 and the second header 2 are respectively provided with chilled water inlet 100 and chilled water outlet 200,
Wherein one end of two groups of porous flat pipe groups 3 is connected with the chilled water outlet 200 of the first header 1, the other end and the second header 2
Chilled water inlet 100 connect；One end of another two groups of porous flat pipe groups 3 is connected with the chilled water outlet 200 of the second header 2,
The other end is connected with the chilled water inlet 100 of the first header 1, and the first header 1 is additionally provided with the freezing with the first header 1
The import 300 of water out 200 connection and the outlet 400 connecting with the chilled water inlet 100 of the first header 1；Every two groups
Porous flat pipe group 3 is spaced and extend side by side in the horizontal direction and constitutes porous flat pipe row 5, and adjacent porous flat pipe arranges 5 phases
Mutually parallel and height be separated by and form gap, fin band 4 is placed in this gap, this fin band 4 undulate and have with adjacent
Porous flat pipe row 5 welding the portion 41 and connect two fin part 42 arching upward portion 41 of arching upward, formed logical between adjacent fins portion 42
Air port 43.
Porous flat pipe group 3 is 4n group, and wherein, n is the natural number more than 0.Can according to refrigerating capacity need arrange more
The parallel porous flat pipe row 5 of layer, fin band 4 then corresponds to undulate and is located in gap.Arch upward portion 41 and adjacent porous flat pipe
The welding manner of row 5 use preferably employs soldering, and concrete preparation method is as follows：The aluminium foil punching press of banding is cracked, makes wave
Shape, the gap of insertion adjacent porous flat tube row 5, apply certain pressure, the portion 41 that finally will arch upward is overall with each porous flat pipe group 3
Soldering forms, and not only can ensure sound construction it is also ensured that porous flat pipe group 3 is more comprehensively contacted with fin band 4, thermal resistance very
Little.Fin band 4 undulate, the porous flat pipe group 3 of cooperation flat can achieve the effect that windage is little, pressure reduction reduces, noise is little, empty
Recall to blow air over porous flat pipe group 3 wind direction as shown in Figure 8.
The porous flat pipe 31 of the porous flat pipe group 3 of this example is internally provided with multiple manholes, and manhole is distributed on flat
In tube body, a diameter of 2mm～10mm of manhole.The ventilating opening being formed 43 is set to V-shaped by this example, may also set up
For taking the shape of the letter U.First header 1, the second header 2, porous flat pipe 31 and fin band 4 are each made of aluminum, and eliminate the need for copper pipe, then
Material cost substantially reduces.
As shown in Fig. 3, Fig. 4, Fig. 7, after the chilled water of air-conditioning is entered by import 300, guided and passed through by the first header 1
The chilled water outlet 200 of the first header 1 enters and is located therein PARALLEL FLOW in each layer porous flat pipe group 3 of side, then passes through
The chilled water inlet 100 of the second header 2 enters the second header 2, under the afflux of the second header 2 acts on, through the second collection
The chilled water outlet 200 of flow tube 2 enters each layer porous flat pipe group 3 PARALLEL FLOW of opposite side, the chilled water through the first header 1
Entrance 100 returns the first header 1, flows out through outlet 400, and wherein, porous flat pipe 31 and fin band 4 achieve sufficient heat
Exchange, air-conditioning return air enters, by side ventilating opening 43, the surface blowing over fin band 4, absorb after cold is lowered the temperature by opposite side ventilating opening
43 discharges, for the cooling of indoor output cold wind.
In order to improve the heat exchange amount of unit front face area, as shown in figure 4, every group of porous flat pipe group 3 of the present invention all includes
A plurality of porous flat pipe 31 side by side, under the guide effect of the first header 1 and the second header 2, air conditioning water pass through into
After entering side porous flat pipe group 3 and the 4 first time heat exchange of fin band, then realized with fin band 4 by the porous flat pipe group 3 of opposite side
Second heat exchange, improves the heat transfer efficiency of heat exchanger to greatest extent, that is, improve rate of heat exchange.This parallel flow type of same volume
The refrigerating capacity of heat exchanger exceeds one times than the refrigerating capacity of tradition pipe type fan coil.
Specifically, as shown in figure 5, first header 1 of this example includes the first seal casinghousing 11 and the dividing plate 12 of column, should
First seal casinghousing 11 has the first interior plate 111 and the first arc outside plate 112 connecting the first interior plate 111 both sides；Dividing plate
12 are placed in the first seal casinghousing 11, and the both sides of dividing plate 12 are respectively and fixedly connected with the first interior plate 111 and the first arc outside plate 112, and
The first separate space 13 and the second separate space 14 will be divided into inside first seal casinghousing 11；The chilled water outlet 200 of the first header 1 sets
Connect in the first interior plate 111 and with the first separate space 13, import 300 connects located at the first arc outside plate 112 and with the first separate space 13
Logical, the chilled water inlet 100 of the first header 1 connects located at the first interior plate 111 and with the second separate space 14, and outlet 400 sets
Connect in the first arc outside plate 112 and with the second separate space 14.Wherein, dividing plate 12 has isolated the first separate space 13 and the second separate space 14,
Beneficial to realizing the heat exchange twice that porous flat pipe group 3 is realized with fin band 4, prevent from isolating chilled water and the outlet of import 300
400 chilled water, prevents from interfering with each other.
As shown in fig. 6, second header 2 of this example includes the second seal casinghousing 21 and the deflector 22 of column, this second
Seal casinghousing 21 has the second interior plate 211 and the second arc outside plate 212 connecting the second interior plate 211 both sides；Deflector 22
It is placed in the second seal casinghousing 21, the second interior plate 211 is fixed in the side of deflector 22, and by inside the second seal casinghousing 21
It is divided into the 3rd separate space 23 and the 4th separate space 24；Another lateral second arc outside plate 212 of deflector 22 extends, this deflector 22
Opposite side be separated by with the second arc outside plate 212, formed connection the 3rd separate space 23 and the 4th separate space 24 passage；Second header
2 chilled water outlet 200 connects located at the second interior plate 211 and with the 4th separate space 24, the chilled water inlet of the second header 2
100 connect located at the second interior plate 211 and with the 3rd separate space 23.Wherein, the 3rd separate space 23 is connected by passage with the 4th separate space 24,
Then chilled water also will be directed to and turn round in the 3rd separate space 23 and the 4th separate space 24 and unroll, multi-layer porous flat beneficial to realizing both sides
The heat exchange twice of pipe group 3.
As a preferred embodiment of porous flat pipe group 3, through a connection between two groups of porous flat pipe groups 3 of same row
Plate (not shown) is connected, and this connecting plate makes two groups of porous flat pipe group 3 disjunctors of same row, and not only structure is more compact, and
And windage can be reduced.
Above-mentioned embodiment is only the preferred embodiment of the present invention it is impossible to limit the scope of protection of the invention with this,
The change of any unsubstantiality that those skilled in the art is done on the basis of the present invention and replacement belong to institute of the present invention
Claimed scope.
Claims (8)
1. parallel flow heat exchanger it is characterised in that：Including the first header, the second header, at least four groups porous flat pipe groups
With a plurality of fin band, the first header and the second header are respectively provided with chilled water inlet and chilled water outlet, wherein two groups porous
One end of flat pipe group is connected with the chilled water outlet of the first header, and the other end is connected with the chilled water inlet of the second header；
One end of another two groups of porous flat pipe groups is connected with the chilled water outlet of the second header, the chilled water of the other end and the first header
Entrance connect, the first header is additionally provided with the import connecting with the chilled water outlet of the first header and with the first header
Chilled water inlet connection outlet；Every two groups of porous flat pipe groups are spaced and extend side by side in the horizontal direction and constitute many
Hole flat tube row, adjacent porous flat pipe row is parallel to each other and height is separated by and forms gap, and fin band is placed in this gap, this wing
Piece with undulate and has the portion and connect two fin part arching upward portion of arching upward with the row's welding of adjacent porous flat pipe, adjacent
Form ventilating opening, described second header includes the second seal casinghousing and the deflector of column, this second capsul between fin part
The second arc outside plate that body has the second interior plate and connects the second interior plate both sides；Deflector is placed in the second seal casinghousing,
The second interior plate is fixed in the side of deflector, and is divided into the 3rd separate space and the 4th separate space by inside the second seal casinghousing；Lead
Another lateral second arc outside plate of stream plate extends, and the opposite side of this deflector is separated by with the second arc outside plate, formation connection the
Three separate spaces and the passage of the 4th separate space；The chilled water outlet of described second header connects located at the second interior plate and with the 4th separate space
Logical, the chilled water inlet of described second header connects located at the second interior plate and with the 3rd separate space.
2. parallel flow heat exchanger according to claim 1 it is characterised in that：Described first header includes the of column
One seal casinghousing and dividing plate, this first seal casinghousing has outside the first interior plate and the first arc of connection the first interior plate both sides
Plate；Dividing plate is placed in the first seal casinghousing, and the both sides of dividing plate are respectively and fixedly connected with the first interior plate and the first arc outside plate, and by first
It is divided into the first separate space and the second separate space inside seal casinghousing；The chilled water outlet of described first header is located at the first interior plate
And connect with the first separate space, described import connects located at the first arc outside plate and with the first separate space, described first header cold
Freeze water inlet connect located at the first interior plate and with the second separate space, described outlet located at the first arc outside plate and with the second separate space
Connection.
3. parallel flow heat exchanger according to claim 1 and 2 it is characterised in that：Described in every group, porous flat pipe group is all wrapped
Include a plurality of porous flat pipe side by side.
4. parallel flow heat exchanger according to claim 3 it is characterised in that：Between two groups of porous flat pipe groups of same row
It is connected through a connecting plate.
5. parallel flow heat exchanger according to claim 3 it is characterised in that：Described porous flat pipe is internally provided with multiple
Manhole, manhole is distributed on flat tube originally in vivo, a diameter of 2mm～10mm of manhole.
6. parallel flow heat exchanger according to claim 3 it is characterised in that：Described first header, the second header,
Porous flat pipe and fin band are each made of aluminum.
7. parallel flow heat exchanger according to claim 1 and 2 it is characterised in that：Described ventilating opening takes the shape of the letter U or V-arrangement.
8. parallel flow heat exchanger according to claim 1 and 2 it is characterised in that：Described porous flat pipe group is 4n group, its
In, n is the natural number more than 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370898.1A CN104132482B (en) | 2014-07-30 | 2014-07-30 | Parallel flow type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370898.1A CN104132482B (en) | 2014-07-30 | 2014-07-30 | Parallel flow type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104132482A CN104132482A (en) | 2014-11-05 |
| CN104132482B true CN104132482B (en) | 2017-02-15 |
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ID=51805262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410370898.1A Expired - Fee Related CN104132482B (en) | 2014-07-30 | 2014-07-30 | Parallel flow type heat exchanger |
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| CN (1) | CN104132482B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482397A (en) * | 2015-08-24 | 2017-03-08 | 广州汽车集团股份有限公司 | Parallel-flow heat exchanger |
| WO2022180823A1 (en) * | 2021-02-26 | 2022-09-01 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle device |
| CN115077120B (en) * | 2022-07-07 | 2023-04-07 | 湖南大学 | Heat pump composite system and control method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3813339C2 (en) * | 1988-04-21 | 1997-07-24 | Gea Happel Klimatechnik | Heat exchangers for motor vehicles and process for its manufacture |
| TW552382B (en) * | 2001-06-18 | 2003-09-11 | Showa Dendo Kk | Evaporator, manufacturing method of the same, header for evaporator and refrigeration system |
| CN101149195A (en) * | 2007-11-14 | 2008-03-26 | 上海精励汽车科技有限公司 | Parallel-flow evaporator for automobile air conditioner |
| US20100044010A1 (en) * | 2008-08-21 | 2010-02-25 | Corser Don C | Manifold with multiple passages and cross-counterflow heat exchanger incorporating the same |
| CN202350395U (en) * | 2011-11-07 | 2012-07-25 | 芜湖精博热传导技术有限公司 | Concurrent flow condenser of automobile air conditioner |
| CN102788522A (en) * | 2012-07-27 | 2012-11-21 | 广东美的电器股份有限公司 | Parallel flow heat exchanger and air conditioner |
| CN202792700U (en) * | 2012-07-27 | 2013-03-13 | 广东美的电器股份有限公司 | Parallel flow heat exchanger and air conditioner |
| CN202885637U (en) * | 2012-10-19 | 2013-04-17 | 广东美的电器股份有限公司 | Flow collecting pipe and parallel flow heat exchanger |
| CN103697631A (en) * | 2013-11-30 | 2014-04-02 | 浙江金宸三普换热器有限公司 | Parallel flow heat exchanger with double-row flat tubes and air-conditioning device with heat exchanger |
| CN204027083U (en) * | 2014-07-30 | 2014-12-17 | 广州涉外经济职业技术学院 | Parallel flow heat exchanger |
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2014
- 2014-07-30 CN CN201410370898.1A patent/CN104132482B/en not_active Expired - Fee Related
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| CN104132482A (en) | 2014-11-05 |
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